#!/bin/bash
#Program
#	Check $1 is equal to "hello"
#History
#	2013/6/29	Leaguenew	First release
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

if [ "$1" == "hello" ] ; then
	echo "Hello , how are you?"
elif [ "$1" == ""  ] ; then
	echo "You must input the parameters,ex>{$0 someword}"
else 
	echo " The only parameter should be 'hello' ,ex>{$0 hello} "
fi

